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Electronic dosimeter and thermoluminescent dosimeter correlation study at Catawba Nuclear Station

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dc.contributor.authorEdquist, Britt Alyssa, author
dc.contributor.authorJohnson, Thomas, advisor
dc.contributor.authorBrandl, Alexander, committee member
dc.contributor.authorBiedron, Sandra, committee member
dc.date.accessioned2007-01-03T06:42:43Z
dc.date.available2007-01-03T06:42:43Z
dc.date.issued2014
dc.description.abstractDuke Energy's nuclear fleet is comprised of seven nuclear plants. The dosimetry program at every plant includes a comparison of the dose recorded by the TLDs and EPDs at the end of each quarter. EPD over-response is desirable to a degree because the over-response offers a higher dose estimate; however, too great of an over estimate obscures the actual dose a worker receives. An EPD/TLD correlation study was conducted to quantify and identify factors contributing to excess EPD over-response and offer recommendations to improve the EPD/TLD correlation. The EPD/TLD correlations at Catawba Nuclear Station (CNS) (York, SC) were markedly higher than the EPD/TLD correlations at other Duke Energy nuclear plants. The purpose of this study was to investigate the EPD/TLD correlation experienced at CNS. Assemblies, comprised of a phantom (a one gallon plastic jug filled with water) with a V2/V3 Mirion 2000S EPD, V4 Mirion 2000S EPD and TLD inside of a plastic bag that was zip tied to the phantom, were placed in strategic locations within the CNS auxiliary building. Dose rates in the CNS auxiliary building ranged from approximately 10 μSv/h (1 mrem/h) to 350 μSv/h (35 mrem/h). Assemblies were removed after seven days and the dose from the EPDs and TLDs were determined and recorded. Both the V2/V3 and V4 EPDs over-responded compared to the TLD. The V4 over-response was found to be greater than the V2/V3 over-response. Reducing the V4 EPD bias from 15% to 7% would improve the correlation between EPD and TLD doses while still permitting some over-response, allowing for more meaningful EPD dose estimates.
dc.format.mediumborn digital
dc.format.mediummasters theses
dc.identifierEdquist_colostate_0053N_12314.pdf
dc.identifier.urihttp://hdl.handle.net/10217/82615
dc.languageEnglish
dc.language.isoeng
dc.publisherColorado State University. Libraries
dc.relation.ispartof2000-2019
dc.rightsCopyright and other restrictions may apply. User is responsible for compliance with all applicable laws. For information about copyright law, please see https://libguides.colostate.edu/copyright.
dc.subjectdosimetry
dc.subjectthermoluminescent dosimeter
dc.subjectnuclear power
dc.subjecthealth physics
dc.subjectelectronic dosimeter
dc.titleElectronic dosimeter and thermoluminescent dosimeter correlation study at Catawba Nuclear Station
dc.typeText
dcterms.rights.dplaThis Item is protected by copyright and/or related rights (https://rightsstatements.org/vocab/InC/1.0/). You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).
thesis.degree.disciplineEnvironmental and Radiological Health Sciences
thesis.degree.grantorColorado State University
thesis.degree.levelMasters
thesis.degree.nameMaster of Science (M.S.)

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